Driving
5.8 Towing a trailer
5 - 86 3 302 690 en Operating manual
GMK4100L-1
23.11.2017
Checking the
braking force
When a trailer is coupled and connected, you can check whether the braking
force of the truck crane alone is sufficient for braking the truck crane and the
trailer on uphill or downhill roads (e.g. when a brake hose has burst).
To check this, you can release the parking brake of the trailer on its own.
• Engage the parking brake.
• Press the lever in and pull it further to the rear.
As long as you hold the lever in this position, the parking brake on the
trailer is released – the parking brake on the truck crane remains applied.
This allows you to check whether the braking force of the parking brake on
the truck crane alone is sufficient to brake the truck crane and the trailer.
• Let go of the lever. The lever latches into position and the parking brake
of the trailer is applied.
S
Risk of accident from truck crane moving unintentionally
When parking on downhill or uphill gradients, always secure the truck
crane and trailer against rolling away with wheel chocks in addition to the
parking brake. Even the parking brake result was positive. Observe the
corresponding regulations in your country when doing this.
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